Sahelanthropus Research Paper

What evidence shows the changing from the early hominids to the modern humans? Throughout the human evolution body parts like legs and harms have changed for the better. By the early hominids being biped, meaning they are able to stand and even walk on two feet, it helped them to be able to do more things like getting around more and help with their tool making and hunting. A lot of the fossils discovered were found in the Great Rift Valley in East Africa, which contained many different lakes and small rivers. For many years researchers have been finding new species. These species have been named Australopithicus, robust australopithecines , Orrorin tugenensis, Homo habilis, Homo erectus, neanderthal, and Homo sapiens. These early

Australopithecus Boisei: Similar to the A. Aethiopicus in terms of the upper shape with the vertical line of bone

The Australopithecine are some of the earliest known hominids and they embody many characteristics that are associated with bipedalism. Bipedalism is a highly specialized and unusual form of primate locomotion that sets modern humans apart from all other living primates as we are the only extant obligate bipeds. Many evolutionary biologists and paleoanthropologists have devoted innumerable research hours to attempting to understand this unique form of locomotion and how it evolved. A number of interdependent morphological adaptations occurred over a long period of time to solve challenges posed by habitual bipedalism. As a result, there are obvious differences that exist between early and late hominin species.

They found that Au. ramidus had very similar characteristics to Sahelanthropus Tchadensis an ancestor that dates to 6-7 million years ago. Ardi had a foot that was primitive and had an opposable big toe which was most likely used to grab on branches. She also had a long and curvy spine just like humans. Its pelvis was large like those of apes and had short and broad shoulders suggesting it had a lower center of mass and could possibly walk on one leg at a time. But it is also thought that it was still spending a lot of time in the trees as well. Thus, why it is thought to be intermediate form of bipedalism it lived in both worlds, walking upright, and climbing trees, equal success in both biospheres. Although Ardi is not the connection to apes it still served to prove that the ancestor of apes was a lot more primitive than we believed. There are still several questions to be answered in this puzzle called our ancestry. It may seem that more questions arise as more clues are found, but that is science, there would be no intrigue left if all questions were

dy of plant fossils and the understanding the evolution of plant life and ecology of earlier eras is known as paleobotany. Paleobotanists concern with fossil records of plants and their geologic history greatly describes the main concept of paleobotany. Only a small percentage of the plants that ever lived left evidence of existence. The major plant fossils that have been discovered are mineralized wood, flowers in amber, leaf imprints in coal, or other plant life many years ago. Paleobotanists document fossil records and use this evidence to find the past evolution of plants.

Discoveries relating to the human lineage are extremely exciting and often baffling. This is the case with the recent discovery of what seems to be the oldest member of the human family. A skull found in northern Chad in 2001, has been deemed the earliest relative to the human ever found. Nicknamed Toumai, and discovered by Michel Brunet and his paleontology team, this new category of human has been given the scientific name, Sahelanthropus tchaensis. What makes this skull so definitive is the fact that it dates back approximately 6-7 million years in the earth’s history (Whitfield 2002). Since the discovery there have been anthropologists and paleontologists that have

The palebians made up the majority of the population. But they were not allowed to have any say in political issues. The palebians were the poor, lower class citizens who couldn't become priests or be a part of the senate. They were the peasants, craftsmen, farmers, and shopkeepers. On the other hand, the patricians were the ones who were wealthy (the upper class) and the only ones that could have power in religious offices, in the senate, and could control over the military. Unllike the Palebians, the patricians were the smaller part of the population that had all the power. But just because the Patricians had all the control over Rome, this did not mean that the Palebians weren't important or "necessary"

Darwin once hypothesized that humans evolved from an ape like ancestor and that those ancestors most likely originated in Africa since the majority of the great apes lived there. Unfortunately, Darwin’s hypothesis was ignored for reasons such as people (e.g. Europeans) not liking of having African ancestors—not to mention the lack of evidence did not help in supporting such hypothesis. Thus, finding the missing link between apes and humans was of great important—it still is. Thankfully, through extensive research many scientists have been able to determine a clade called Hominin [7]. This clade contains humans as well as their most closely related relatives.

Paleopathological findings indicate the presence of tumors through animals well before prehistoric times. Steven Hajdu explains that written descriptions of cancer date back to the Egypt, Byzantine and other Indo-European civilizations where medicine men attempted to cure it using herbal remedies and did not hesitate to use concoctions of iron, copper, sulfur and mercury (1), elements known for its toxic nature. Failing to treat the diseases because of both the lack of knowledge of the human anatomy and DNA or proper equipment, they would claim that the wrath of God had struck upon the ill patient. Medicine Men of this time also did not strive to further study cancer since mortality rates were low due to lack of food, clean water and constant

Blastocystis hominis (B hominis) is a common parasitic organism found throughout the world. An infection with B hominis is called blastocystosis. The parasite lives in your large intestine and can be found in stool. It can remain in the body for weeks, months, or years. It is not known whether the parasite B hominis causes any symptoms in humans or if the associated symptoms may be caused by infection with other parasitic organisms, bacteria, or viruses. Often, B hominis is found along with other organisms that are more likely to be the cause of your symptoms.

Three recent fossil findings believed to be hominin ancestors have been selected for description and any controversy surrounding their discovery will be discussed. The three fossils are: Homo floresiensis, Homo rudolfensis and Kenyanthropus

Evidence indicates Neanderthals and Modern humans shared a common African ancestor and split on the evolutionary tree between 500,000 to 200,000 years ago. Neanderthals developed in the cold and harsh environment of Europe and western Asia. With a lot of water locked up in the polar ice caps, Africa was experiencing a severe drought. This arid and dry environment is where modern human’s direct ancestor was living. These people’s bodies were a lot taller and weaker (to allow heat to escape) in comparison to the Neanderthals. This severe drought placed modern humans on the brink of extinction. However, when a species is dying out only the most inventive and resourceful survive, this causes the fitness of the remaining population to increase. In Europe the Neanderthals toughness allowed them to be very successful. In Africa the modern humans developed something the Neanderthals did not have, imagination. In Africa to survive it was necessary to think ahead and this allowed them to make the final step in becoming modern humans. Every previous human ancestor had been limited to the confines of their environment, but these ancestors eventually made their way out of Africa, and their imaginative behavior is illustrated in the drawings they left behind for others to find. After they left Africa they could have very well come into contact with the Neanderthals. Neanderthals became

According to physical evidence, and theories, scholars have concluded upon a whole hypothesis. Based on their knowledge and belief, modern humans diverged from Homo sapiens between 200,000 and 150,000 years ago specifically in Africa, that between 125,000 and 60,000 years ago members of Homo sapiens left Africa, and that these

       In the article, "Natural History of Homo erectus" by Susan C. Antón discussed our view of H. erectus is different today than when Pithecanthropus erectus, then only the second fossil hominin taxon to be discovered, was described by Dubois (1894) (Antón, C. Susan, 162). H. erectus was the most primitive and smallest-brained of the fossil hominins (Antón, C. Susan, 162). Therefore, early observations expended significant effort showing that the Indonesian fossils from Trinil were actually hominins (Antón, C. Susan, 162). Thus, it took the dismissal of Piltdown and the broad acceptance of Australopithecus as a hominin ancestor, along with the substantial Asian

Hominids with a brain absolutely and relatively larger than that of the australopithecines appeared about 2.3 million years ago. These hominids are classified in our own genus: Homo. The earliest species to appear was the Homo Habilis. It was the first of our ancestors to show a significant increase in brain size and also the first to be found associated with stone tools. These characteristics resulted in this species’ placement into the human genus, Homo.